initial commit

1 files changed, 43 insertions, 0 deletions

diff --git a/src/skaembutils/s6-env.c b/src/skaembutils/s6-env.c
new file mode 100644
index 0000000..b2e1312
--- /dev/null
+++ b/src/skaembutils/s6-env.c
@@ -0,0 +1,43 @@
+/* ISC license. */
+
+#include <errno.h>
+#include <skalibs/sgetopt.h>
+#include <skalibs/bytestr.h>
+#include <skalibs/strerr2.h>
+#include <skalibs/env.h>
+#include <skalibs/djbunix.h>
+#include <s6-portable-utils/config.h>
+
+#define USAGE "s6-env [ -i ] [ name=value... ] prog..."
+
+int main (int argc, char const *const *argv, char const *const *envp)
+{
+  stralloc modifs = STRALLOC_ZERO ;
+  char const *arg_zero[2] = { S6_PORTABLE_UTILS_BINPREFIX "s6-printenv", 0 } ;
+  char const *env_zero[1] = { 0 } ;
+  PROG = "s6-env" ;
+  {
+    subgetopt_t l = SUBGETOPT_ZERO ;
+    for (;;)
+    {
+      register int opt = subgetopt_r(argc, argv, "i", &l) ;
+      if (opt == -1) break ;
+      switch (opt)
+      {
+        case 'i': envp = env_zero ; break ;
+        default : strerr_dieusage(100, USAGE) ;
+      }
+    }
+    argc -= l.ind ; argv += l.ind ;
+  }
+  for (; argc ; argc--, argv++)
+  {
+    if (!(*argv)[str_chr(*argv, '=')]) break ;
+    if (!stralloc_cats(&modifs, *argv) || !stralloc_0(&modifs))
+      strerr_diefu1sys(111, "stralloc_cats") ;
+  }
+  if (!argc) argv = arg_zero ;
+  pathexec_r(argv, envp, env_len(envp), modifs.s, modifs.len) ;
+  stralloc_free(&modifs) ;
+  strerr_dieexec((errno == ENOENT) ? 127 : 126, argv[0]) ;
+}